BENSHAW RSi H2 Series - Stall Prevention and Flux Braking

Parameter Descriptions
207
890053-00-02
5.8.11 PRT-50 Stall Prevention and Flux Braking
The stall prevention function is a protective function that prevents motor stall caused by overloads.
When high currents are sensed during acceleration and/or constant speed, the output frequency is
decreased automatically to reduce current. Also, during deceleration, as the DC bus voltage
increases, the deceleration time is extended.
Flux braking is used to determine the optimum deceleration time to avoid overvoltage trips and
without utilizing brake resistors. When using flux braking, the output frequency is increased and
the regenerative energy is expended at the motor.
Group
Code
Name
LCD Display
Parameter
Setting
Setting range
Unit
PRT
50
Stall prevention and
flux braking
Stall Prevent
0000
0000 - 1111
bit
51
Stall frequency 1
Stall Freq 1
60.00
Start Freq– Stall
Freq 1
Hz
52
Stall level 1
Stall Level 1
130
30–150
%
53
Stall frequency 2
Stall Freq 2
60.00
Stall Freq 1–
Stall Freq 3
Hz
54
Stall level 2
Stall Level 2
130
30–150
%
55
Stall frequency 3
Stall Freq 3
60.00
Stall Freq 2–
Stall Freq 4
Hz
56
Stall level 3
Stall Level 3
130
30–150
%
57
Stall frequency 4
Stall Freq 4
60.00
Stall Freq 3– Max
Freq
Hz
58
Stall level 4
Stall Level 4
130
30–150
%
59
Flux Braking Gain
Flux Brake kp
0
7.5 - 125HP
0–150
%
150 - 800HP
0–10
OUT
31~3
5
Multi-function relay
1–5 item
Relay 1–5
9
Stall
-
-
36
Multi-function output
1 item
Q1 Define